Classic travel companies were supposed to be dead and buried as online sites such as Expedia and TripAdvisor let travelers make their own, often cheaper, arrangements. But full-service agencies are booking more trips, catering to travelers willing to pay an expert to develop smart itineraries. Flights booked by traditional travel agencies increased 11 percent over the past four years, according to the Airlines Reporting Corp. Boston expansion is underway for several travel companies. Get the full story at The Boston Globe